Questions

Progeria is a rare genetic disordr which involves symptoms resembloing aspects of aging, manifested at a very early age.
The term is often used in reference to Hutchinson - gilford progeria syndrome(HGPS).

Dehydration is a loss of body fluid that impairs normal bodily functions. Serious dehydration may cause muscle cramps, reduced blood volume and increased heart rate.

A tendon is a fibrous connective tissue which is Tough, fibrous, cord-like tissue that connects muscle to bone or another structure, such as an eyeball. Tendons help the bone or structure to move.

Firstly, I focussed on "If you remove my 1st & 2nd letters, you can't see me". The first thing that comes to mind which we can’t see is the "AIR".

So now, what 4 letter words can be formed ending with "AIR"? Think of all the words from A to Z, considering which one lies above you. That is how we get to "HAIR".

Now, which 5 letter word can be formed ending with "HAIR"? Starting with A to Z, we reach "CHAIR" and also, it lies below us.

And the required answer is "CHAIR".

Windheok is the capital of Namibia

312-Article of the Indian Constitution deals with the creation of All India Services.